I understand it also - why people would want him out
Ultimately I think there are more fundamental problems at Everton, akin to the England football team. Expectations are maybe too high and there seems to be a toxic culture within the fanbase
It's hard to really fault the choices Moshiri etc have made bringing in the managers they did - you could see the logic behind each. More money is being spent than ever before, but managers are being given no time or patience to get things right
Like I say, I wouldn't have hired him, but the best thing for Silva right now would be for the fans to be supportive to the end of the season - that will take pressure of him and the players and may have a positive effect. Otherwise, it's a downward spiral of negativity - compounded on each loss - inevitably he'll be sacked and another manager will need to be hired, but chances are they won't do any better
It seems that now, if we get anywhere close to mid table / top of the bottom half, then the axe looms. Moyes actually had several seasons close to relgation, or yoyoed between near relegation escapes and top half finishes, before getting into the groove of consistently good finishes. If he had joined today, he probably wouldn't have lasted more than a season or two...